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Cache-assisted ultra-dense mobile edge computing (MEC) networks are a promising solution for meeting the increasing demands of numerous Internet-of-Things mobile devices (IMDs). To address the complex interferences caused by small base…

信息论 · 计算机科学 2024-10-22 Tianqing Zhou , Bobo Wang , Dong Qin , Xuefang Nie , Nan Jiang , Chunguo Li

Hardware support for trusted execution in modern CPUs enables tenants to shield their data processing workloads in otherwise untrusted cloud environments. Runtime systems for the trusted execution must rely on an interface to the untrusted…

Isolating sensitive state and data can increase the security and robustness of many applications. Examples include protecting cryptographic keys against exploits like OpenSSL's Heartbleed bug or protecting a language runtime from native…

密码学与安全 · 计算机科学 2019-06-05 Anjo Vahldiek-Oberwagner , Eslam Elnikety , Nuno O. Duarte , Michael Sammler , Peter Druschel , Deepak Garg

Microprocessors enable aggressive hardware virtualization by means of which multiple processes temporally execute on the system. These security-critical and ordinary processes interact with each other to assure application progress.…

密码学与安全 · 计算机科学 2020-01-28 Hamza Omar , Omer Khan

This paper outlines the design of `Quest-V', which is implemented as a collection of separate kernels operating together as a distributed system on a chip. Quest-V uses virtualization techniques to isolate kernels and prevent local faults…

操作系统 · 计算机科学 2011-12-22 Ye Li , Matthew Danish , Richard West

Biclustering algorithms play a central role in the biotechnological and biomedical domains. The knowledge extracted supports the extraction of putative regulatory modules, essential to understanding diseases, aiding therapy research, and…

数据库 · 计算机科学 2022-12-13 Leonardo Alexandre , Rafael S. Costa , Rui Henriques

Directory-based protocols have been the de facto solution for maintaining cache coherence in shared-memory parallel systems comprising multi/many cores, where each store instruction is eagerly made globally visible by invalidating the…

硬件体系结构 · 计算机科学 2012-10-09 Daofu Liu , Yunji Chen , Qi Guo , Tianshi Chen , Ling Li , Qunfeng Dong , Weiwu Hu

Recent Microsoft security bulletins show that kernel vulnerabilities are becoming more and more important security threats. Despite the pretty extensive security mitigations many of the kernel vulnerabilities are still exploitable.…

密码学与安全 · 计算机科学 2011-05-11 Piotr Bania

Blockchain technology enhances transparency by maintaining a distributed ledger among mutually untrusting parties. Despite its advantages, scalability and availability remain critical bottlenecks that hinder widespread adoption. The…

分布式、并行与集群计算 · 计算机科学 2026-04-20 Manaswini Piduguralla , Souvik Sarkar , Arunmoezhi Ramachandran , Sathya Peri

We propose a simple yet effective multiple kernel clustering algorithm, termed simple multiple kernel k-means (SimpleMKKM). It extends the widely used supervised kernel alignment criterion to multi-kernel clustering. Our criterion is given…

机器学习 · 计算机科学 2020-05-13 Xinwang Liu , En Zhu , Jiyuan Liu , Timothy Hospedales , Yang Wang , Meng Wang

Previous schemes for designing secure branch prediction unit (SBPU) based on physical isolation can only offer limited security and significantly affect BPU's prediction capability, leading to prominent performance degradation. Moreover,…

密码学与安全 · 计算机科学 2025-01-22 Zhe Zhou , Fei Tong , Hongyu Wang , Xiaoyu Cheng , Fang Jiang , Zhikun Zhang , Yuxing Mao

Bolted is a new architecture for bare-metal clouds that enables tenants to control tradeoffs between security, price, and performance. Security-sensitive tenants can minimize their trust in the public cloud provider and achieve similar…

As large language models (LLMs) grow in size and deployment scale, quantization has become an essential technique for reducing memory footprint and improving inference efficiency. However, existing quantization toolkits often lack…

机器学习 · 计算机科学 2025-12-01 Dong Liu , Yanxuan Yu

With the advent of hundreds of cores on a chip to accelerate applications, the operating system (OS) needs to exploit the existing parallelism provided by the underlying hardware resources to determine the right amount of processes to be…

The Linux kernel extensively uses the Berkeley Packet Filter (BPF) to allow user-written BPF applications to execute in the kernel space. The BPF employs a verifier to check the security of user-supplied BPF code statically. Recent attacks…

密码学与安全 · 计算机科学 2024-06-10 Hongyi Lu , Shuai Wang , Yechang Wu , Wanning He , Fengwei Zhang

High-fidelity quantum entanglement enables key quantum networking capabilities such as secure communication and distributed quantum computing, but long-distance entanglement distribution is limited by noise and loss. Entanglement…

量子物理 · 物理学 2026-03-24 Andi Gu , Lorenzo Leone , Kenneth Goodenough , Sumeet Khatri

In monolithic operating systems, the kernel is the piece of code that executes with the highest privileges and has control over all the software running on a host. A successful attack against an operating system's kernel means a total and…

操作系统 · 计算机科学 2014-05-23 Francesco Gadaleta , Nick Nikiforakis , Yves Younan , Wouter Joosen

A recent discovery of a new class of microarchitectural attacks called Spectre picked up the attention of the security community as these attacks can circumvent many traditional mechanisms of defense. One of the attacks---Bounds Check…

密码学与安全 · 计算机科学 2018-10-11 Oleksii Oleksenko , Bohdan Trach , Tobias Reiher , Mark Silberstein , Christof Fetzer

We present a software approach to mitigate access-driven side-channel attacks that leverage last-level caches (LLCs) shared across cores to leak information between security domains (e.g., tenants in a cloud). Our approach dynamically…

密码学与安全 · 计算机科学 2016-03-18 Ziqiao Zhou , Michael K. Reiter , Yinqian Zhang

Modern GPU applications, such as machine learning (ML), can only partially utilize GPUs, leading to GPU underutilization in cloud environments. Sharing GPUs across multiple applications from different tenants can improve resource…

分布式、并行与集群计算 · 计算机科学 2024-10-17 Manos Pavlidakis , Giorgos Vasiliadis , Stelios Mavridis , Anargyros Argyros , Antony Chazapis , Angelos Bilas